This 2001 Ford ExST, like most 1997+Later Autos, has an OnBoardDiagnosis2 ComsPort under the left Dash.
After keeping a basic OBD2 Scanner in the GloveBox for several years that reads & resets only StandardSAE
TroubleCodes, I now also use these items that allow for complete access to all Codes, Signals & Configurations:

OBDLink#MXP OBD2~WirelessBT ComsModule & OBDLink+Torque+Carista Apps & AndroidPhon
* Reads+Resets+Graphs both StandardSAE & ProprietaryAutoMaker Codes.
* DashBoardMode for viewing Temps & Signals while driving.
* Used for Routine Maintenance & DailyMonitoring.

OBDLink#EX OBD2~CabledUSB ComsModule & OBDLink+ForScan Apps & WindowsPC
* Reads+Resets+Graphs+Configures both StandardSAE & ProprietaryAutoMaker Codes.
* Faster & easier than ToggleSwitch ELM327 ComsModules.
* Used for InDepth Maintenance & Configurations.

Links To Related Info

Thanks go to the brave souls who've preceded me in similar adventures & freely shared their experience below:

https://web.archive.org/web/20191225161131if_/http://connector.pinoutguide.com/16_pin_car_J1962_OBD_2_special OBD2 Pins
https://web.archive.org/web/20191225161132if_/http://pinoutguide.com/CarElectronics/ford_obd_2_pinout.shtml OBD2 Pins
https://web.archive.org/web/20130330121312if_/http://www.motorcraftservice.com/vdirs/retail/default.asp?pageid=diag_theory_retail&gutsid=diagsheet&kevin=rules OBD2 1996~2013.Ford
https://web.archive.org/web/20130626102106if_/http://www.motorcraftservice.com/vdirs/diagnostics/pdf/obdsm109.pdf OBD2 2001.Ford

https://forscan.org/forum/viewtopic.php?f=4&t=6142 Mdul+Apps+OpSy OBDLinkEX+ForScanApp+WindowsPC\OBDLinkMXP+OBDLinkApp+AndroidPhon
https://www.explorerforum.com/forums/threads/forscan-obdii-plug-in.483755/#post-3872897 Mdul+Apps+OpSy OBDLinkEX+ForScanApp+WindowsPC
https://web.archive.org/web/20200521195952if_/http://www.obdlink.com/mxp/vs-bluedriver Mdul+Apps+OpSy OBDLinkMXP+OBDLinkApp+AndroidPhon
https://youtu.be/cs2-3BlsWvs?t=4 Mdul+Apps+OpSy OBDLinkMXP+OBDLinkApp+AndroidPhon Graphs+Logs
https://youtu.be/iGzPmm4a2MU?t=4 Mdul+Apps+OpSy
https://youtu.be/CQCMvHJLnZY?t=6 Mdul+Apps+OpSy
https://youtu.be/3HwoIKyKkMY?t=86 Mdul+Apps+OpSY
https://www.scantool.net/forum/index.php Mdul+Apps+OpSy

https://web.archive.org/web/20180119171831if_/https://www.therangerstation.com/tech_library/OBD-II_codes.shtml TroublCode List
http://www.obdii.com/codes.asp TroublCode LookUp
https://web.archive.org/web/20200115011703if_/http://www.obdii.com/drivecycleford.html TroublCode P1000=TestIncomplete\HowToClear
https://youtu.be/UkkpVuYMlBE?t=277 TroublCode P1000=TestIncomplete\HowToClear

https://lasotaracing.com/collections/tuning-hardware/products/sct-x4-handheld-flasher Apps SCT#x4+LasotaTune
https://www.2gfusions.net/showthread.php?tid=4573 Apps Hack
https://web.archive.org/web/20200221225227if_/http://theksmith.com/software/hack-vehicle-bus-cheap-easy-part-1 Apps Hack
https://web.archive.org/web/20200101193736if_/http://theksmith.com/software/hack-vehicle-bus-cheap-easy-part-2 Apps Hack
Community content is available under CC-BY-SA unless otherwise noted.